A typical Isekai Harem Monogatari follows a strict formula:
Why do these women stay?
While our keyword focuses on the male-led variant, the female-led (Reverse Harem) is growing. Think Fushigi Yuugi for the modern era, or My Next Life as a Villainess: All Routes Lead to Doom! where a girl surrounded by boys has to avoid death flags. isekai harem monogatari